Home / 28,546.12-42,823.28-8,826.21

Finding the Fourth Proportional to 28,546.12, 42,823.28 and 8,826.21

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Solution

The fourth proportional to 28,546.12, 42,823.28 and 8,826.21 is: 13,240.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,546.12 : 42,823.28 = 8,826.21 : x
  2. Step 2: Convert to fraction form
    28,546.12/42,823.28 = 8,826.21/x
  3. Step 3: Cross multiply
    28,546.12x = 42,823.28 × 8,826.21
  4. Step 4: Simplify right side
    28,546.12x = 377,967,218.04
  5. Step 5: Solve for x
    x = 377,967,218.04/28,546.12
  6. Step 6: Final answer
    x = 13,240.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.